Sites like
this one lead me to believe that there's money to be made for those that can master the tools necessary for fixing problems of this sort.
I've got a copy of one of the best (Fovea Pro) but can't make heads or tails (pun intended) out of it, due to the scientific nature of the process.
This is no interactive, instant feedback restoration. Theres math involved, and some physics as well.
I've exchanged some emails with the makers of Fovea Pro, to see if it's possible to put an easier interface over a limited selection of their tools, and the short answer is "no".
But you guys are much smarter than me. Blur reconstruction is very definitely a form of restoration and retouching, so if anyone is inclined to investigate it, start some threads and do some research. Maybe we can get it figured out. I'll even give it a special sub-forum if enough interest is generated.
Here's an interesting link to get you started.
Here's another link, this one more theoretical (and with some interesting spelling) that might point some directions to look.
Don't forget: make new threads with info.